Re: [patch] fix tfmode for i386-darwin

[Geoffrey Keating <geoffk at apple dot com>]

On 24/05/2007, at 11:29 PM, Eric Christopher wrote:

> So, when Uros added the tfmode support he forgot darwin :)
>
> This does that, the problem is that darwin doesn't really support  
> strong aliases. There's a workaround of doing this via some  
> assembly that'll work unless we do some odd rearrangements at link  
> or load time. That said I'm a little leery of checking this in for  
> that reason.
>
> Geoff, what do you think?

Mach-O does not, has not, and will not, support aliases in any form.   
It can and will do odd rearrangements at link time (for example, when  
using 'order files' or 'dead code stripping').  You'd need to write  
little stub routines, along the lines of 'int fooTI(int a, int b)  
{ return fooElse(a, b); }'.

> -eric
>
> 2007-05-24  Eric Christopher  <echristo@apple.com>
>
> 	* config.gcc: Add i386/t-fprules-softfp64 and soft-fp/t-softfp
> 	to x86-darwin configurations.
> 	* config/i386/t-darwin: Add softfp support.
> 	* config/i386/t-darwin64: Ditto.
> 	* config/i386/sfp-machine.h: If mach then use strong_alias
> 	workaround.
>
> <tfmode.diff.txt>

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